Feed device for root-cutters provided with drums.



A. MAG'UIN.

FEED DEVICE FOR ROOT CUTTERS PROVIDED WITH DRUMS.

APPLICATION FILED APR. 24, 1913.

nnw 1 9. T m 1H 08 e Fm 1 m .ww n3 0w t a D1 Inventors Witnessesflttorney.

A. MAGUlN. FEED DEVICE FOR ROOT CUTTERS-PROVIDED WITH DRUMS.

APPLICATION FILED APR. 24, 1913.

Patented Feb. 1, 1916'.

3 SHEETS-SHEET 2- Inventors DE'CZID IIIIIIIIIII'III g m I w. M

Witnesses- Attorney.

THE COLUMBIA PLANOGRAPH co., WASHINGTON, D. c.

A. MAGUIN.

FEED DEVICE FOR ROOT CU TTERS PROVIDED WITH DRUMS.

APPLICATION FILED APR. 24, 1913.

1,169,981. Patented Feb. 1, 1916.

3 SHEETS-SHEET 3.

Inventors .dttorney.

rm: COLUMBIA PLANUGRAPH c0., WASHINGTON, D. c.

ALFRED MAGUIN, or CHARMESJNVEAR nA FEREQFRANCE;

FEED DEVICE FOR ROOT-CUTTERS' PROVIDED VVITI'I DBUMS.

Application filed April 24, 1913.

T 0 all whom it may concern:

Be it known that I, ALFRED MAGUIN, a citizen of the French Republic, residing at Charmes, near La Fere, Aisne, France, have invented a certain new and useful Feed Device for Root- Cutters Provided with Drums, of which the following is a Specification.

In machines for slicing beetroots or other roots for the purpose of the extraction of sugar by the diffusion process the chief care is to obtain regularity of formation of the slices cut by the member carrying the cutting blades: now, the principal cause of the poor quality of the slices cut is lack of regularity in feeding the roots into contact with the member which carries the cutting blades.

In the so-called drum root-cutters different devices have successively been emploved for securing this regularity of contact of the beet-roots with the cutting surface; these devices have given good results, but they do not secure absolutely perfect progress of the operation.

The device, however, which is the object of the present invention allows of obtaining the maximum of efiiciency; it is characterized by the combination with a special form of the hopper into which the beetroots pass for delivery to the root-cutters, of a screw which exerts a pushing effect and which is provided at the bottom of this hopper and is set in motion by the shaft of the root-cutters themselves by means of a gear wheel and pinion. In order not to set up an abnormal strain when changing the knife-carriers and when the cutting portion of the root-cutters is rotated in the opposite direction, the screw is connected to the shaft which supports it by means of a ratchet device which only acts in the direction of rotation for operation of the machine.

In the accompanving drawings is shown a constructional form of the present invention.

Figure 1 is a horizontal section through AB of F ig. 2; Fig. 2 is a vertical section through CDEF in Fig. 1; Fig. 3 is an elevation showing the root-cutters from the side of the hopper; Fig. 4: is a plan view Specification of was Patent.

Patented Feb.'1, 1916.

Serial No. 763,421.

of the exterior charging hopper; finally Fig. 5 is a detail showing the method of mounting the feeding screw on its axis, with the ratchet device.

As shown on these figures, .the hopper 1 is provided with a substantially cylindrical part into which the beetroots fall before entering the root-cutters; in the center of this part 2 is provided a screw formed by a portion of a worm 3; this screw is mounted on a shaft 4 on which is keyed a gear wheel 5 receiving motion from the shaft 7 of the root-cutters through a pinion 6.

During the period of operation, the screw thus driven by the rotation of the shaft of the root-cutters, forces the beetroots regularly and irresistibly forward laterally through the casing 12 into the interior hopper and moves them regularly against the cutting surface. When the drum stops, the screw also stops, thus ending the period of feeding. In order to avoid the abnormal strain which it would be necessary to exercise when the root cutters are rotated in the opposite direction from the direction for operation for the purpose of changing the knife carriers, the screw has been mounted on a sleeve 8 surrounding the shaft 4; a spring 9 confined between a projection of the sleeve 8 and a stop 10 which can be regulated and which is provided on the shaft 4, tends constantly to press the sleeve 8 against the inclined portion of a shoulder 11 of the shaft 4. This inclined portion is so provided that the shaft 4 drives the endless screw 3 when the shaft rotates in the direction of operation and does not drive in the opposite direction, its projection acting on the sleeve 8 against the action of the spring 9. This ratchet device thus insures the stopping of the screw when the root-cutters are rotated in the opposite direction to the direction for operation.

Vhat I claim as my invention and desire to secure by Letters Patent is A machine for slicing beetroots and the like consisting of a worm horizontally disposed, a shaft upon which said worm is mounted, a ratchet device by means of which the said worm is connected to the shaft so that the said worm may rotate in one direction only, a cylindrically shaped channel Within Which the said shaft and In testimony whereof I have hereunto Worm are mounted, a shaft upon which the signed my name to this specification in the cutters are mounted, said shaft being dis- 7 presence of two subscribing Witnesses. posed eccentric? with but} parallel vto the" I ALFRED MAGUIN. Worm shaft and'gear by'vvhich the move Witn'esses'z" ment of one shaft is transmitted to the DOMINIQUE CAsALoNGA,

other. I HANSON C.- CoxE.

Copies of this patent may be obtained for fiire cents each, by addressing'the Commissioner of Patents, Washington; D. C. 

